Of all the shiny objects that I saw WTF Espresso Bar, a tricked-out cafe that opened last month in Fort Greene, Brooklyn, the gadget that caught my attention was a conical filter made of perforated stainless steel [ top]. He was sitting in a Chemex brewer, which looked much more impressive when equipped with a metal filter that could draw blood. It was a Kone, a reusable filter developed by Keith Gehrke COAV of a coffee roaster in small quantities in Portland, OregonThe Kone is a beautiful, simple and austere. More to the point of conception, the fact that coffee is rich and full. The filter is cleaner than a mesh basket, and photochemical machined holes that let the oil would be absorbed by a flow of paper through the standard filter. It gives you control a Chemex and tannic cut you get from the French press: a Frenchmex.Whether you like it is a matter of taste. For most of my adult life, I was a French-partisan press. But in recent years I have been experimenting with different methods of filtering, and now I'm used to drink coffee with bright floral aromas. When I started using the Kone last week, it is strange to find such an aggressive coffee sitting in my Chemex. It was like pulling up a bamboo steamer and meet a piece of grilled meat.The Kone has been introduced this month, and there are already 900 orders. That's impressive for a gadget supergeeky coffee brought by a partnership of two people with no history of product development that makes the Kone entirely in the United States: Ohio steel, formed and welded into the Connecticut, is distributed through the Oregon...